Oven knob



FIG. 1 is a front perspective view of an oven knob, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a cross sectional view taken along line 8-8 of FIG. 2.

The broken lines depict portions of the oven knob and environmental structure that form no part of the claimed design. 

CLAIM The ornamental design for an oven knob, as shown and described. 